US3251780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bleaching composition
Assignee: Dow Chemical Co
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Filing: 1964-05-11
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Granted: 1966-05-17
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Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 John R Moyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:02
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3942; D; D06; D06L; D06L4/00; D06L4/10; D06L4/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A DRY THERMALLY STABLE BLEACHING COMPOSITION CONSISTING ESSENTIALLY OF SODIUM BICARBONATE AND CALCIUM PEROXIDE AS A POWDERED MIXTURE WHEREIN THE RATIO OF THE WEIGHT OF SAID SODIUM BICARBONATE TO CALCIUM PEROXIDE IS FROM ABOUT 1.5 TO ABOUT 3.4 SUCH THAT WHEN MIXED TOGETHER IN QUANTITIES OF WATER OF FROM 1 TO ABOUT 250 PARTS OF WATER PER PART OF DRY MIXTURE, AN AQUEOUS BLEACHING
Claim 2
Dependent Claim
64 words
A DRY THERMALLY STABLE BLEACHING COMPOSITION CONSISTING ESSENTIALLY OF SODIUM BICARBONATE AND CALCIUM PEROXIDE AS A POWDERED MIXTURE WHEREIN THE RATIO OF THE WEIGHT OF SAID SODIUM BICARBONATE TO CALCIUM PEROXIDE IS FROM ABOUT 1.5 TO ABOUT 3.4 SUCH THAT WHEN MIXED TOGETHER IN QUANTITIES OF WATER OF FROM 1 TO ABOUT 250 PARTS OF WATER PER PART OF DRY MIXTURE, AN AQUEOUS BLEACHING
References Cited (Backward Citations)
US2366740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |